Fast, but very imprecise sight picture. My 1.5" at 15 yd 45 was shooting 3.5" at 15 yds. Ok for combat, but very imprecise for accuracy shooting.

Exactly the same situation for me. It's only on a defensive gun for me. I acquired the gun preowned and didn't bother to change the sights. It's nice for fast acquisition but it won't win at precision shooting.